From c7becb2c7512aaf37c85af62d43cdf94e6f5fdbd Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Fri, 25 Dec 2020 22:25:37 -0800
Subject: [PATCH] http: Treat buffer full flush correctly.

Unix platforms may fail send with EAGAIN instead of 0 bytes.
---
 Common/Net/Sinks.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Common/Net/Sinks.cpp b/Common/Net/Sinks.cpp
index 2d15de15cf..459f09f16a 100644
--- a/Common/Net/Sinks.cpp
+++ b/Common/Net/Sinks.cpp
@@ -343,6 +343,10 @@ bool OutputSink::Flush(bool allowBlock) {
 		size_t avail = std::min(BUFFER_SIZE - read_, valid_);
 
 		int bytes = send(fd_, buf_ + read_, (int)avail, MSG_NOSIGNAL);
+#if !PPSSPP_PLATFORM(WINDOWS)
+		if (bytes == -1 && (errno == EAGAIN || errno == EWOULDBLOCK))
+			bytes = 0;
+#endif
 		AccountDrain(bytes);
 
 		if (bytes == 0) {
@@ -371,6 +375,10 @@ void OutputSink::Drain() {
 		size_t avail = std::min(BUFFER_SIZE - read_, valid_);
 
 		int bytes = send(fd_, buf_ + read_, (int)avail, MSG_NOSIGNAL);
+#if !PPSSPP_PLATFORM(WINDOWS)
+		if (bytes == -1 && (errno == EAGAIN || errno == EWOULDBLOCK))
+			bytes = 0;
+#endif
 		AccountDrain(bytes);
 	}
 }